HueComb

Serial Kisses

#dd3744

A red that is saturated. It is mid — the hardest range to put text on, either colour struggles.

Hex

#dd3744

RGB

221, 55, 68

OKLCh

59.5% 0.201 22.0°

CIELAB (D50)

50.9, 64.3, 34.2

What is true of this colour, and of no other

  • 3 other named colours sit within ΔE00 2 of it.
  • It uses 84% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 69.5; on black, Lc -32.1. The sign is the polarity, which the WCAG ratio discards.
  • Built into an eleven-step scale, 10 of the 10 adjacent pairs stay ΔE00 2 apart — see the ramp.
  • protanopia and deuteranopia and tritanopia shift it by ΔE00 36.6 and 44.1 and 52.2 — no red cone.

Text on this colour

White text

4.46:1 — large text only

Black text

4.70:1 — passes AA

Black text is the better of the two at4.70:1. That is enough for body text.

As text on white, it needs to change

#dc3643 is the nearest colour of the same hue that passes AA on white, at 4.50:1. Only the lightness moved.

Try it against your own background

The same colour, with one cone missing

As you see it

#dd3744

protanopia

#5f5f46 · ΔE00 36.6

deuteranopia

#86863a · ΔE00 44.1

tritanopia

#a5a500 · ΔE00 52.2

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isPoppy Red at ΔE00 0.213: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

8 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.